• lenses that provide increased light transmission • roof prisms • waterproofing ensures water resistance and prevents dust from entering the interior of the binoculars • nitrogen filling prevents the optics from fogging inside the binoculars • improved rubberized non-slip surface for a good grip • adjustable protrusion of eye cups allows you to adjust their position to our needs, and thus a more comfortable observation • central focusing allows you to set it in both glasses at the same time • diopter adjustment in the right eyepiece